what are these groups for /

In /etc/group there are listings for groups called wheel, dip, and nobody.

What are these groups for?
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modulusConnect With a Mentor Commented:
They could be used for anything really depending on how the system is configured.  If you look at your /etc/group file again you'll see that the format is:

In my case wheel has one member root, and dip and nobody have no members.  Interestingly typing `groups nobody' reveals that nobody belongs to the nobody group and `ps -u nobody' shows that the httpd and in.identd are owned by nobody.  From what I remember wheel is used during setup as a synonym for root.

The only thing that I can think that "dip" might be is for the dial-up ip login shell.  But I don't use it, so don't quote me!
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